New York developer Gary Flocco predicted “smooth sailing” for construction of the new Great Oaks Charter School in Bridgeport’s West End last summer.

His prediction was spot on as hundreds of students now roam the halls of the newly opened facility at 375 Howard Ave.

“We said we would be ready for the 2019 fall semester, and we were,” Flocco told Hearst Connecticut Media Wednesday, following a 15-month construction period that brought the three-story, 70,000-square-foot school to life.

Developers from Corvus Capital and representatives from Great Oaks broke ground on the project last June with plans of eventually accommodating 725 middle and high school students.

So far, Flocco said, 560 students have already enrolled, with the remaining expected to join the student body in coming years. The school teaches grades six to 10 with plans to expand to 11th and then 12th grade over the following years.

Tthe charter school set up at 510 Barnum Ave. in the former Singer Sewing Machine Factory four years ago, a home school officials had said was meant to be a temporary space.

“It’s really been a good public private partnership with all parties,” Flocco said. “Everyone worked as a cohesive team,”

Boston community loan fund was the primary investor for the school; Capital for Change investing handled construction of the tutor house.

The school was $17 million and the tutor housing $8 million.

“To actually see the vision that my partner and I only saw in reality is really very satisfying,” Flocco said. “It looks exactly how we hoped it would look.”

The new school features classroom space, a common cafeteria and other amenities. There is also 23,000 square feet of residential space that will accommodate apartments for tutors.

Great Oaks provides two hours of daily tutoring in math and English Language Arts to every student with the help of a 60-member, AmeriCorps-funded Tutor Corps. According to Flocco, tutors are slated to move into their units by Oct. 15.

Flocco debuted more than 140 loft apartments at the Cherry Street Lofts last fall which he said were fully leased within two months. The plan is to deliver another 66 units by October as part of another 157 apartments they’ve been building throughout the year, he said.

The fall is slated to bring even more construction in that part of town, as Corvus Capital begins its third phase construction on the block.

Flocco said the next project will bring another 210 loft apartments to the area, realizing his longstanding vision to build a “city within a city” in the West End.

“We came into Bridgeport and we thought it was a diamond in the rough,” he said. “Everything that we are experiencing now is proving that we were correct.”